Now I've heard everything! LOL!! Mind you, cats will play with just about anything. Ours adore boxes. One very big ginger tabby we had, Jess, tried to sit in a shoebox that had held my daughter's shoes. She was just 6 years old, so the shoes were not very big, and neither was the box. Jess got his four paws in it then sat down, and all four sides of the box split! Funniest thing I've ever seen!